Fuji Xerox Co., Ltd.

Other

Fujifilm Business Innovation Corp.

Mitsubishi Oil Co., Ltd.

Toshio Mukai

Tsutomu Miyashi

Yoshiro Yamashita

Ken Hashimoto

Toshitake Yui

Eisuke Hiraoka

Hiroshi Inoue

Akihiko Chujo

Takanori Suzuki

Kyoko Horii

Kentaro Ageishi

Yasuharu Endo

Fuminori Koide

Atsushi Suzuki

Nobuyuki Ichizawa

Takatsugu Doi

Kunichi Yamashita

Mamoru Fujita

Katsumi Nukada

Hiroyuki Tanaka

Katsuhiro Sato

Yutaka Akasaki

Kazuhiko Hirokawa

Hiroyuki Ueki

Mami Hatanaka

Naoya Yabuuchi

Hiroshi Fujii

Hiroshi Ikeda

Takahiro Ishizuka

Jun Kawahara

Naoki Morita

Hirohito Yoneyama

Yusuke Watanabe

Chisato Urano

Daisuke Tano

Kenta Shingu

Kaoru Watanabe

Hiromi Nagai

Daisuke Nakashima

Etsuo Sagara

Shimpei Takagi

A belt cleaning blade has a contact site that comes into contact with at least a surface of a belt which is a member to be cleaned, in which the contact site is configured with polyurethane rubber including hard segments and soft segments, and in a cross section of the contact site, a ratio X of domains of the hard segments to a total area of the cross section is 14.9% or more and 25.1% or less, and a ratio Y of an area of domains of the hard segments having an area of 200 nmor more and 1,000 nmor less to a total area of the domains of the hard segments in the cross section is 17.8% or more and 46.5% or less.

Belt cleaning blade, photoreceptor cleaning blade, image forming apparatus, transfer device, and cleaning device

In a cleaning blade, a contact portion that comes into contact with a member to be cleaned is configured with a cured substance of a composition containing a polyisocyanate, a polyol, and at least one of the following (1) or (2):

Cleaning blade, cleaning device, process cartridge, and image forming apparatus

An intermediate transfer belt cleaning system includes an intermediate transfer belt that has an outer peripheral surface to which a toner image is to be transferred and a cleaning device having a cleaning blade that comes into contact with the outer peripheral surface of the intermediate transfer belt to clean the outer peripheral surface, in which the cleaning blade has a peak value (tan δ) of a loss tangent of 0.25 or more and 0.40 or less at a frequency of 1 Hz and a loss tangent (tan δ) of 0.20 or more and 0.35 or less at 22° C. at a frequency of 1 Hz, the tan δand the tan δbeing determined by measuring temperature dependence of viscoelasticity of the cleaning blade, and a coefficient D of dynamic friction between the intermediate transfer belt and the cleaning blade is 0.30 or more and 0.80 or less.

Intermediate transfer belt cleaning system, transfer device, and image forming apparatus

A transfer device includes an intermediate transfer member that has an outer peripheral surface to which a toner image is to be transferred, a primary transfer device that has a primary transfer member performing primary transfer of a toner image formed on a surface of an image holder to the outer peripheral surface of the intermediate transfer member, a secondary transfer device that has a secondary transfer member which is arranged in contact with the outer peripheral surface of the intermediate transfer member and performs secondary transfer of the toner image transferred to the outer peripheral surface of the intermediate transfer member to a surface of a recording medium, and a cleaning device that has a cleaning blade cleaning the outer peripheral surface of the intermediate transfer member, in which a coefficient D of dynamic friction between the intermediate transfer member and the cleaning blade is 0.2 or more and 1.2 or less, a lead-in angle A that a contact portion of the cleaning blade coming into contact with the intermediate transfer member forms with the intermediate transfer member is 15° or more and 80° or less, and the coefficient D of dynamic friction and the lead-in angle A satisfy Expression (1),lead-in angle−(50×coefficientof dynamic friction)>0  Expression (1).

Transfer device and image forming apparatus

A near-infrared absorbent dispersion includes water, a near-infrared absorbent, and a resin dispersant, wherein a weight ratio of the near-infrared absorbent to the total weight of the near-infrared absorbent and the resin dispersant is more than 0.01 and less than 0.33.

Near-infrared absorbent dispersion, aqueous ink for ink jet recording, and aqueous ink set for ink jet recording

Provided is an aqueous ink for ink jet recording that includes: water; a water-soluble organic solvent; a coloring material; and a specific compound having a structure expressed by the following General Formula (I), wherein ink pH is in a range of 6.5 to 8.5.  In General Formula (I), R, R, R, and Reach independently represent a structure expressed by General Formula (I-R) or an alkyl group having 1 to 6 carbon atoms which is not branched, Rrepresents a hydrogen atom or a methyl group, and n represents an integer in a range of 0 to 3, and the total carbon number of the structure expressed by General Formula (I-R) is equal to or less than 6.

Aqueous ink for ink jet recording, aqueous ink set for ink jet recording, and ink jet recording method

An aqueous ink for ink jet recording includes water, a water-soluble organic solvent, a coloring material, and a near-infrared absorbent, wherein a continuous range of wavelengths in which an absorption amount of the ink is not less than 80% of a maximum absorption amount of the ink in a near-infrared region is 10 nm or more.

Aqueous ink for ink jet recording, aqueous ink set for ink jet recording, and ink jet recording apparatus

A coating liquid includes a polymer particle, an aggregating agent for a coloring material, a nonionic surfactant having an HLB value within the range of 15.5 to 20, and water.

Coating liquid and recording medium

There is provided an ultraviolet-curable aqueous ink containing: a continuous phase containing water; and a dispersed phase dispersed in the continuous phase, wherein the dispersed phase contains a water-insoluble ultraviolet polymerizable compound, and a water-insoluble ultraviolet polymerization initiator having an absorption at a wavelength range of 375 nm or more and 450 nm or less.

Ultraviolet-curable aqueous ink, ink cartridge, recording apparatus and recording method

There is provided an ultraviolet-curable aqueous ink containing: an ultraviolet polymerizable compound; a water-insoluble thioxanthone compound having an absorption at a wavelength range of 375 nm or more and 450 nm or less, a water-insoluble tertiary amine compound, water, and a water-soluble organic solvent at least including a solvent (A) that dissolves the thioxanthone compound and the tertiary amine compound.

An image recording composition including a curable material that is cured upon application of an external stimulus, water-absorbing resin particles, and a nonionic surfactant.

Image recording composition, image recording ink set and recording apparatus

An inkjet recording method includes recording by ejecting liquid droplets of an ink onto a recording medium from an ejection head that ejects, by heat, the liquid droplets of the ink at an ejection amount with respect to one droplet of from 1 ng to 2 ng to thereby attach the liquid droplets of the ink to the recording medium, wherein the ink comprises a pigment having a volume average particle diameter of from 100 nm to 400 nm and has a dynamic contact angle of from 30&#xb0; to 60&#xb0;, 50 seconds after dropwise addition of 3 &#x3bc;l of the ink to plain paper.

Inkjet recording method by heat, inkjet recording apparatus using heat, and ink for inkjet recording by heat

According to the invention, there is provided an image recording composition comprising a curable material capable of immobilizing a colorant material in a received ink and curable by an external stimulus.

Image recording composition, ink set for image recording, recording apparatus, and image recording method

A recording apparatus includes: an intermediate transfer member; a supply unit that supplies a curable liquid onto the intermediate transfer member, the curable liquid including at least one curable material that is cured by an external stimulus and a liquid absorbing material; a first temperature information acquisition unit that acquires temperature information related to the curable liquid; a temperature regulation unit that regulates the temperature of the curable liquid supplied onto the intermediate transfer member; an ink application unit that applies ink onto a curable liquid layer formed on the intermediate transfer member; a transfer unit that brings the curable liquid layer onto which the ink has been applied into contact with a recording medium, and transfers the curable liquid layer from the intermediate transfer member to the recording medium; and a stimulus application unit that applies a stimulus for curing the curable liquid layer to the curable liquid layer.

Recording apparatus and recording method

A recording apparatus including: an intermediate transfer member; an image forming composition layer formation unit that supplies an image forming composition to the intermediate transfer member, the image forming composition containing a curable material that cures upon application of an external stimulus; an ink application unit that applies ink to the image forming composition layer that has been formed on the intermediate transfer member; a transfer unit that transfers the image forming composition layer from the intermediate transfer member to a recording medium by contacting the image forming composition layer onto which the ink has been applied with the recording medium; and a first stimulus application unit that applies a stimulus to the image forming composition layer that cures the image forming composition layer, the stimulus being applied at least one of immediately before the image forming composition layer comes into contact with the recording medium, or during the contact.

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Kanagawa, Japan

Yoshiro Yamashita